Improvement in making- cone springs



imi ,Staten Matese-W @sind i Letters Patent No. 88,031,datel-March 23,1869.

The Schedule referred to in these' Letters Patent and making pari: ofthe same.

To all `whom 'it may concern Beit known that I, WILLIAM H. GOODALE, ofColton, in the County of St. Lawrence, and State of New accompanyingdrawings, forming-part of this specifica.

tion, in which-,

Figure 1 is a front view or my improved machine.

Figure 2 is a top view of the same, part being broken away, to show theconstruction.

Figure 3 is a side view of one of the springs.

Figure 4 is a detail top view of the same.

Similar letters of reference indicate like parts.

My invention has for its object to furnish an improved machine forforming or turning upholstering cone springs, which slss-ill be simplein construction, and effective in operation, forming the' springsquickly and accurately', and

It consists in the construct-ion and combination of the various parts,as hereinafter more fully described.

A is the innin frame of the machine, to which are attached the bed-plateB and die C, by which the upper end of the spring D is formed.

E is the vertically-sliding frame, which slides up and down in guides inthe frame A.

The cross-balie of the fra-nie E acts as a follower for set-ting, orforming the spring in the die, or holder, C.

F is `a cone, upon the base of which is formed or to it is attachedajournal which works in bearings in the frame A, and to therearwardly-projecting end of which are attached 'a crank, G, or apulley, by nicnns of which the said cone F is revolved, and aratchet-whcel and pawl, by which the said conc may be held securely inplace, and prevented from being drawn back by the tension oi' the wire.

The conical surface ofthe cone F is grooved spiially in exactly' thcform of the required spring.

The forward end of the spiral groove of the conc F terminates in alongitudinal groove formed in the cylindrical forwardlyprojecting partof the said cone, which said groove islnade so deep, that when thevertical upper end of the vspring Dis placed in it, the said g maybeexactly in the axisl upper end of the said sprin of the cone F.

In the base of the cone F, at the rear end of the spiral groove in saidcone, is secured a knife, or cutter, H, upon which the wire is out oiiby the descent ofthe cutter I, formed upon or attached to the outer, orfree end of the lever J.

The lever J is pivoted to the frame A, and its rear end is held down,holding the cutter I away from the cone F by the spring K, which isattached to the frame A, and the free end of which rests upon the uendof the lever J, as shown in iig. l.

L is a lever, which is pivoted to the frame A, in such a. positionthat'its inner end may rest against the inner end of the lever J, asshown in fig. 1.

M is afconnecting-rod, the upper end of which is at tached to the outerend of the lever L, and the lower end of which is attached to thetreadle, or foot-lever N, which is pivoted to the frame A, in suchafposition that its outer, or free end' may be conveniently reached `andoperated by the operator with his foot. v

. P is'a cylindrical reduced portion of the top crossbar of the frame A.This projection, or tube, P, is perforated longitudinally in its outerend, and, in using the machine, one end of the wire, from whichthespring is to be formed, is inserted therein, and the same bent to form aright angle.

is then inserted in the longitudinal gmove in the cylindrical forwardend of the cone F. Then, by revolving the cone F, by means of the crankG, the wire will be wound around the cone F, following the spiral`groove of said cone, and thus receiving the desired form. As the wirereaches the rear end of the said spiral groove, t-hc operator, bypressing down upon the treadle N, cuts it off, when the formed springmay be removed from the cone, and the upper vertical end, which has beenpreviously bent by means of the tube P, is inserted in the pertbrationin the cross-bar c', as shown in red.

The lower, or enlarged part of the spring D, is also placed in thecavity c in the holder` O; and in order that the spring may be heldfirmly, or prevented from turning,'the lower end of the wire, or spring,is placed in Contact with the shoulder d formed in the cavity c of theholder C. It will be understood that, for the purpose of arranging thespring in this position, the frame E is adjusted so as to bring thecrossfbar e at a proper distance from the holder U.

The operation isnow completed by the operator pressing, with his foot,upon the lower cross-bar of the frame E, whereby the middle and parallelcrossbar c' is pressed down upon the spring D, and the same set, orcaused to assume the desired shape.

When formed in this way, the upper, or vertical end of the spring Dwillbe exactly in therayxis of said spring, so thatpressure appliedtosaid vertical end will bear equally upon all parts of said spring, andcompress it vertically and equally.

Havingthus -described my invention,

I yclaim as new, and desire to secure by Letters Patent- The improvedapparatus for forming upholstering cone springs, consisting of a die, orholder, O, frame A,

vertical-sliding frame E, tube I, spirally-grooved cone F, cutters H andI, lever J, spring K, level L, connecting-rod M, treadle, or foot-leverN, and ratchet and pawl, all constructed and arranged upon the frame,substantially as herein shown and described, and for the purposes setforth.

WILLIAM H. GOODALE.

Witnesses i EDWARD ORARY, E. D. BROOKS.

lhe straight, or vertical upper end of the spring D-

